Fungi

A fungus (pl.: fungi or funguses) is any member of the group of eukaryotic organisms that includes yeasts, molds, as well as mushrooms. These organisms are classified in the biological kingdom Fungi. A characteristic that places fungus in a different kingdom from plants, bacteria, and some protists is having chitin in their cell walls. Fungi, like animals, are heterotrophs: they acquire their nutrition by absorbing dissolved organic molecules, typically by secreting digestive enzymes into their environment. A fungus does not perform photosynthesis. Growth is their means of motility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the Eumycota (true fungi or Eumycetes), that share a common ancestor (i.e. they form a monophyletic group), an interpretation that is also strongly supported by molecular......read more on Wikipedia.